CN101900835A - Adaptive microwave security sensor - Google Patents

Adaptive microwave security sensor Download PDF

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Publication number
CN101900835A
CN101900835A CN2010102240162A CN201010224016A CN101900835A CN 101900835 A CN101900835 A CN 101900835A CN 2010102240162 A CN2010102240162 A CN 2010102240162A CN 201010224016 A CN201010224016 A CN 201010224016A CN 101900835 A CN101900835 A CN 101900835A
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China
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detecting
detector
signal
noise floor
means
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CN2010102240162A
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Chinese (zh)
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CN101900835B (en
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D·E·梅里特
R·菲
X·吴
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霍尼韦尔国际公司
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Priority to US12/472,488 priority Critical patent/US8004451B2/en
Priority to US12/472488 priority
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G08B13/2494Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field by interference with electro-magnetic field distribution combined with other electrical sensor means, e.g. microwave detectors combined with other sensor means
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18Prevention or correction of operating errors
    • G08B29/185Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
    • G08B29/188Data fusion; cooperative systems, e.g. voting among different detectors
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18Prevention or correction of operating errors
    • G08B29/20Calibration, including self-calibrating arrangements
    • G08B29/22Provisions facilitating manual calibration, e.g. input or output provisions for testing; Holding of intermittent values to permit measurement

Abstract

The invention discloses an adaptive microwave security sensor. A method and apparatus are provided for operating a microwave detector for detecting intruders within a secured area. The method includes the steps of selecting a noise floor based upon a setting of a range setting potentiometer, detecting a magnitude of a signal reflected from a test subject within the secured area that exceeds the selected noise floor and establishing a threshold value for detecting an intruder based upon the magnitude of the detected signal and sensor mounting height.

Description

自适应微波安防传感器 Adaptive microwave security sensors

技术领域 FIELD

[0001] 本发明的领域涉及传感器,并且尤其涉及安防传感器(security sensor)。 FIELD [0001] The present invention relates to sensors, and more particularly to security sensors (security sensor). 背景技术 Background technique

[0002] 总体上用于检测入侵的安防传感器是众所共知的。 [0002] The security sensor for detecting intrusion in general are well known to the. 在基本水平下,可以通过使用窗户或门的开关来实现入侵检测。 In substantially horizontal, intrusion detection is achieved through the use of window or door switches. 在另一水平下,可以在开放区域中通过使用一个或多个运动传感器来检测入侵。 In another level, intrusion may be detected by using one or more motion sensors in open areas.

[0003] 对运动的检测可通过许多不同类型的装置来实现。 [0003] Detection of the movement can be implemented in many different types of devices. 一种类型的运动传感器称为PIR(Passive InfraRed,被动红外)传感器。 One type of motion sensor is referred PIR (Passive InfraRed, passive infrared) sensor. PIR传感器运行的原理是入侵者的体温让入侵者从不同温度背景中突显出来。 PIR sensor operation principle of an intruder's body temperature so that intruders stand out from the background at different temperatures. 在这种情况下,人类入侵者的红外特征可以用来激活警报。 In this case, the infrared signature of human intruders can be used to activate an alarm.

[0004] 其它类型的运动传感器可能依赖于超声波或微波。 [0004] Other types of motion sensors may depend on ultrasound or microwaves. 在一些情况下,不同类型的运动检测传感器可以联合使用(例如,PIR和微波)。 In some cases, different types of motion detection sensors may be used in combination (e.g., the PIR and microwave).

[0005] 在安防领域,期望能够更加可靠地检测出入侵者进入到受保护空间中。 [0005] In the field of security, it is desired to more reliably detect an intruder enters the protected space. 实现上述期望的常用方法是使用双重技术运动检测器,其包括多普勒微波频率(Doppler microwave frequency)运动检测器和被动红外(PIR)检测器。 The method used to achieve the above desirable to use dual technology motion detectors, which comprises a microwave frequency Doppler (Doppler microwave frequency) and a passive infrared motion detector (PIR) detector. PIR检测器感测来自入侵者的红外辐射(IR, infrared radiation)而多普勒微波频率运动检测器发射微波频率信号并且检测由于存在入侵者的原因而导致的返回信号的变化。 Infrared PIR detector senses radiation from the intruder (IR, infrared radiation) and the Doppler microwave frequency motion detector transmits a microwave frequency signal and detects a change in the return signal due to the presence of intruders caused.

[0006] 较之各个传感器单独使用,PIR传感器和微波传感器的组合使用提供了许多好处。 [0006] than the respective sensors used alone, in combination of a PIR sensor and a microwave sensor provides many benefits. 例如,在周围环境温度与入侵者的体温接近的情况下,PIR传感器可能不会运行良好。 For example, in the case where the ambient temperature around the temperature close to the intruder, the PIR sensors may not work well. 另一方面,微波传感器的缺点是还能够检测到在受保护区域外的运动。 On the other hand, a disadvantage is that the microwave sensor is also able to detect motion outside the protected area by.

[0007] 检测器的组合可以用来通过使用来自两种类型传感器的输入来消除错误警报。 Composition [0007] The detector may be used to eliminate false alarms by using the inputs from both types of sensors. 在这种情况下,该组合可以消除由于微波运动检测器检测到在受保护空间外的运动或者微波检测器检测到受保护空间内物体的颤动的原因而导致的错误警报。 In this case, the combination may eliminate false alarms due to the microwave motion detector detected except for the protected space or a microwave motion detector detects the object by reason of the wobbling caused by the protected space. 此组合还消除了由于诸如加热器之类的非人热源的原因而导致的来自PIR检测器的错误警报。 This combination also eliminates false alarms due to non-human heat sources such as a heater or the like resulting from the PIR detector. 再者,当周围环境温度与入侵者的体温相近时,来自微波传感器的所检测的多普勒信号可以被用来检测入侵者ο Further, when the ambient temperature is close to the temperature of an intruder, the detected Doppler signal from microwave sensor can be used to detect intruders ο

[0008] 微波传感器需要使用发射微波遍及安全区域并接收反射信号的定向天线。 [0008] Microwave sensors require the use of directional antennas emitting microwaves throughout the safe area and receives the reflected signals. 然而, 微波检测器的检测区域通常比PIR检测器的保护区域要大些。 However, the detection region is usually higher than the microwave detector PIR detector protected area to be bigger. 为了达到最佳性能,有必要使微波和PIR的保护区域二者匹配。 For best performance, it is necessary that the microwave and PIR protected areas both match. 为了做到这一点,需要调整微波传感器的灵敏度。 To do this, it is necessary to adjust the sensitivity of the microwave sensor. 这是费时的过程。 This is a time consuming process. 因此,存在对设置微波入侵检测器的更好方法的需要。 Accordingly, a need exists for better methods of setting the microwave intrusion detector.

发明内容 SUMMARY

[0009] 本发明用于检测安防区域内的入侵者的微波检测器的操作方法的技术方案包括: [0009] The method of operation of the invention for detecting intruders within a secured area of ​​a microwave detector technical solution comprising:

[0010] 基于范围设定电位计的设定自动选择所述安防区域内的噪声本底电平; [0010] Automatic selection of the noise present in the bottom region of the security level is set based on a range setting potentiometer;

[0011] 检测从安防区域内的测试主体反射的信号的幅值,所述幅值超过了所选噪声本底;和[0012] 基于所检测到的信号的所述幅值确立用于检测入侵者的阈值。 [0011] The amplitude of the signal detecting reflected from the test subject within a security area, said amplitude exceeds the selected noise floor; and [0012] based on the amplitude of the detected signal is established for detecting intrusion threshold's value.

[0013] 优选地,还包括检测所述检测器在所述安防区域之上的标高。 [0013] Preferably, the detector further comprising a level detector above the secured area.

[0014] 其中,检测标高的步骤还包括读取开关设定。 [0014] wherein the step of detecting the elevation further comprises reading a switch setting.

[0015] 进一步地,该微波检测器的操作方法还包括,基于所检测的标高从查找表中选择检测标准修正因数。 [0015] Further, the operation method further comprises a microwave detector, selection detection criteria correction factor from a lookup table based on the detected level.

[0016] 其中,选择噪声本底的步骤还包括,基于所述范围设定电位计的设定,从IF放大器的输出取回所述噪声本底。 [0016] wherein the step of selecting the noise floor further comprises, based on the setting of the potentiometer set range, retrieving the noise floor from an output of the IF amplifier.

[0017] 优选地,检测所述信号的幅值的步骤还包括进入测试模式。 [0017] Preferably, the step of detecting the amplitude of the signal further comprises entering a test mode.

[0018] 进一步地,检测所述信号的幅值的步骤还包括把所述安防区域内的所述测试主体定位于距所述检测器最大相对距离处或者直接在所述传感器的下方。 [0018] Further, the step of detecting the amplitude of said signal further comprises the test subject within the secured area is positioned away from the detector at a maximum relative distance or directly below the sensor.

[0019] 本发明用于检测安防区域内的入侵者的微波检测器的技术方案包括: [0019] The technical solution of the present invention for detecting intruders within a secured area of ​​a microwave detector comprising:

[0020] 用于基于范围设定电位计的设定选择噪声本底的装置; [0020] range is set based on the setting of the potentiometer noise floor selection means;

[0021] 用于检测从所述安防区域内的测试主体反射的信号的幅值且所述幅值超过所选噪声本底的装置;和, [0021] for detecting the amplitude of the test signal reflected from within the body region and the security device exceeds the selected noise floor amplitude; and,

[0022] 用于基于所检测的信号的幅值和传感器安装高度或者检测标准修正因数确立用于检测入侵者的阈值的装置。 [0022] for mounting height or detection criteria correction factor to establish a threshold value for detecting an intruder means based on the amplitude and the detected sensor signal.

[0023] 优选地,还包括用于检测所述检测器在所述安防区域之上的标高的装置。 [0023] Preferably, further comprising means for detecting the elevation of the detector above the secured area.

[0024] 其中,用于检测标高的装置还包括用于读取开关设定的装置或者其它装置。 [0024] wherein the means for detecting the elevation further comprises means for reading a switch setting or other means.

[0025] 此外,本发明微波检测器还包括用于根据检测到的标高从检测标准修正因数查找表集中选择一个的装置。 [0025] Further, a microwave detector according to the present invention further comprises means for detecting the level of detection criteria correction factor from the look-up table in a centralized selecting means.

[0026] 优选地,用于选择噪声本底的装置还包括用于基于所述范围设定电位计的所述设定从IF放大器的输出中取回所述噪声本底的装置。 [0026] Preferably, the apparatus further comprising a noise floor for the setting of the potentiometer range setting means based on the noise floor is retrieved from the output of IF amplifier for selection.

[0027] 优选地,用于检测所述信号的幅值的装置还包括用于进入测试模式的装置。 [0027] Preferably, the means for detecting the amplitude of said signal further comprises means for entering the test mode.

[0028] 优选地,用于检测所述信号的幅值的装置还包括在所述安防区域内被定位于距所述检测器的最大相对距离处或者直接在所述传感器下方的测试主体。 [0028] Preferably, the amplitude of the signal detecting means further comprises positioned at the maximum relative distance from the detector or directly underneath the sensor test subject within the secured area.

[0029] 本发明用于检测安防区域内的入侵者的微波检测器的技术方案包括: [0029] The technical solution of the present invention for detecting intruders within a secured area of ​​a microwave detector comprising:

[0030] 噪声本底,从范围设定电位计的设定确定; [0030] The noise floor, from a set range setting potentiometer is determined;

[0031] 比较器,其检测从所述安防区域内的测试主体反射的信号的幅值且所述幅值超过所选噪声本底;和 [0031] The comparator, which detects the amplitude of the signal reflected from the test subject within the secured area and that exceeds the selected noise floor amplitude; and

[0032] 阈值,用于基于所检测到的信号安装高度或检测标准修正因数来检测入侵者。 [0032] threshold value, based on the detected signal mounting height or detection criteria correction factor to detect intruders.

[0033] 优选地,还包括所述检测器在所述安防区域之上的标高,用于确定所述噪声本底。 [0033] Preferably, the detector further comprising elevation above the secured area for determining the noise floor.

附图说明 BRIEF DESCRIPTION

[0034] 图1示出了依据本发明的举例说明实施例的通常使用环境中的微波入侵检测器; [0034] FIG 1 illustrates the present invention is illustrated based on the microwave intrusion detector generally used in the environment of the embodiment;

[0035] 图2是图1的入侵检测器的方框图;和 [0035] FIG. 2 is a block diagram of the intrusion detector of FIG. 1; and

[0036] 图3是图1的检测器可以执行的步骤的流程图。 [0036] FIG. 3 is a flowchart of the detector of FIG. 1 can perform.

具体实施方式 detailed description

[0037] 本发明与用于设定微波入侵检测器的范围的方法有关。 [0037] The present invention relates to a method for setting a range of microwave intrusion detector concerned. 众所周知,现有设备常常使用功率分配器来减小来自微波源的输出多普勒信号电平,其位于有固定检测门限的IF 放大器的输出端口。 Known, prior devices often use a power divider to reduce the output Doppler signal level from a microwave source, which is located a fixed detection threshold of the IF amplifier output port. 然而,这具有使经反射的多普勒信号的动态范围减小的不利影响并且恶化了微波检测模式,尤其在低微波频带下(例如,在S和X频带中)。 However, this has a reflected Doppler signal dynamic range and reduce the adverse effects of deterioration of the microwave detection pattern especially at low microwave frequency bands (e.g., in the S and X frequency bands). 另外,在最小的范围设定下,下视性能(look-down performance)变得非常差。 Further, the range is set at the minimum, depending on the performance (look-down performance) becomes very poor.

[0038] 图1示出了一种在本发明的举例说明实施例下的使用环境中的自适应微波安防检测器10。 [0038] FIG. 1 shows an example of the present invention will be described in an adaptive microwave security detector 10 used in the environment of the embodiment. 如图所示,检测器10起到了在安防区域12内检测入侵者的作用。 As shown, the detector 10 acts as an intruder detector 12 in the security area.

[0039] 图2是图1的微波检测器10的方框图。 [0039] FIG. 2 is a block diagram of the microwave detector 10 of FIG.

[0040] 图3是可以在检测器10内执行的步骤的流程图。 [0040] FIG. 3 is a flowchart of steps performed in a detector 10.

[0041] 包含在微波检测器10内的可以是运行在适当微波频率(例如,24GHz)下的微波振荡器14,其通过天线16和耦合器18发射微波信号32遍及安防区域12。 [0041] contained within the microwave detector 10 may be run in a suitable microwave frequency (e.g., 24GHz) under microwave oscillator 14, over which the security zone 12 and the coupler 16 via the antenna 18 emits microwave signals 32. 所述耦合器18不但将发射信号32耦合到天线16,而且还将发射信号32的一部分36耦合到混频器24。 The coupler 18 not only couples the transmitted signal 32 to the antenna 16, but also part of the transmit signal 32 is coupled 36 to the mixer 24. 所述耦合器18还将反射信号34的一部分38耦合到混频器24。 The coupler 18 is also part of the reflected signal 34 is coupled 38 to mixer 24.

[0042] 所述振荡器14在来自脉冲发生器22的脉冲的控制下间歇地运行。 The [0042] Oscillator 14 is operating intermittently under the control of the pulse from the pulse generator 22. 在这种情况下, 来自脉冲发生器22的脉冲在来自微处理器31的触发信号40的控制下而生成。 In this case, the pulse from the pulse generator 22 generates a trigger signal under control of the microprocessor 31 from 40.

[0043] 来自脉冲发生器22的脉冲同时被应用到微波振荡器14和信号调理电路30。 [0043] The pulses from the pulse generator 22 is simultaneously applied to the microwave oscillator 14 and a signal conditioning circuit 30. 在响应中,所述振荡器14生成被发射遍及所述安防区域12的微波信号32。 In response, the oscillator 14 generates a microwave signal is transmitted across the secured area 12 is 32. 同时,所述信号调理电路30可以开始对混频器24的输出IF信号进行采样。 Meanwhile, the signal conditioning circuit 30 may begin to output IF signal of the mixer 24 is sampled. 然后,可以对混频器24的采样输出IF信号进行滤波和放大以便移除任何噪声或者基频(例如,f< 500Hz)外的其它谱分量。 Then, it is possible to filter and amplify the IF signal samples of the output of the mixer 24 to remove any noise or the fundamental frequency (e.g., f <500Hz) Other spectral components outside.

[0044] 在混频器24内,发射信号32的该部分36与反射信号34的部分38混合。 [0044] In the mixer 24, the signal of the portion 38 of mixing portion 32 and the reflected signal 36 transmitted 34. 发射信号32的部分36与反射信号34的部分38的混合产生多普勒频率输出信号42。 Transmission signal generating section 3632 of the Doppler frequency output signal 42 is mixed with the reflected signal 34 of portion 38.

[0045] 多普勒输出信号42在范围设定电位计28内予以标量(scale),并作为输入64提供给微处理器31。 [0045] The Doppler output signal 42 is set to be the count range of potential scalar (Scale) 28, 31 and supplied to the microprocessor 64 as input. 类似地,检测器10在安防区域12之上的安装高度或标高20被作为第二输入提供给微处理器31的数模转换器(D/A)。 Similarly, the detector 1020 is provided to a digital to analog converter (D / A) 31 in the microprocessor 12 is mounted above the security zone height or elevation as a second input.

[0046] 检测器10可以在本地或远程控制面板26的控制下运行。 [0046] The detector 10 may operate under control of a local or remote control panel 26. 在这点上,检测器10可以由来自控制面板26的装备信号(arming signal)44激活。 In this regard, the detector 10 may be activated by an arming signal 44 (arming signal) from the control panel 26. 类似地,检测器10所检测到的入侵者可以作为报警信号46被报告给控制面板26。 Similarly, the detector 10 can be detected as an intruder alarm signal 46 is reported to the control panel 26.

[0047] 在上述实施例中,发射天线和接收天线是同一个。 [0047] In the above embodiment, the transmit and receive antennas are the same. 在另一实施例中,发射天线和接收天线可以是分开的。 In another embodiment, the transmit and receive antennas may be separate.

[0048] 当检测器10安装在安防区域12中时,检测器10的运行特性必须与所述安防区域的尺寸相匹配。 [0048] When 12, the operating characteristics of the detector 10 must be matched to the size of the secured area when the detector 10 is mounted in the security area. 在过去,上述问题已经通过利用试误法对微波入侵检测器进行灵敏性调整予以解决。 In the past, the above-mentioned problems have been by microwave intrusion detector sensitivity adjustment to be carried out to address the use of trial and error. 在本发明的举例说明实施例下,提供了一种更简单的解决方案。 In the example embodiment of the present invention described embodiments, a more simple solution.

[0049] 此问题的解决方案是双重的。 [0049] The solution to this problem is twofold. 首先,设置技术人员进入100设置模式。 First, set 100 technical personnel to enter setup mode. 接下来,所述技术人员可以通过开关20输入102微波检测器10的安装高度或标高。 Next, the skilled person may enter through the switch 20102 microwave detector mounting height or elevation 10. 所述开关20可以是任何适当的高度选择装置(例如,DIP开关、电位计等)。 The switch 20 may be any appropriate height selection device (e.g., DIP switches, potentiometers, etc.).

[0050] 安装高度的输入允许在检测器内部的选择处理器从查找表50、52的库中选择和取回检测修正因数。 [0050] The mounting height input allows selection processor inside the detector to select and retrieve a detection correction factor from a look-up table 50, 52 library. 所选查找表(例如,50)可以包含针对运行在输入的安装高度下的检测器所优化的检测标准修正因数集。 The selected lookup table (e.g., 50) may comprise a detector for the run in the installed height of the input optimized set of detection criteria correction factor.

[0051] 设置技术人员48可以通过范围电位计28(例如,图1中的范围设定1)输入104对从检测器到受保护区域的远程端的最大范围的初步估计。 [0051] 48 may be disposed in the art by the scope of the potential meter 28 (e.g., FIG. 1 is set in the range of 1) a preliminary estimate input 104 pairs of the maximum range from the detector to the remote end of the protected area. 范围设定的输入允许微处理器31记录106基于电位计的距离设定位置的原始噪声本底(noise floor)。 Range setting input 31 allows the microprocessor 106 records the original noise floor (noise floor) is set based on the distance of the position of the potentiometer. 在输入最大范围的估计之后,所述设置技术人员48可以通过激活控制面板26或检测器10上的按钮54或者其它特征使检测器进入108走动测试模式(walk test mode)。 After the estimate of the maximum input range, the setting in the art can control panel 48 or detector 26 by activating button 54 or other features 10 on the detector 108 enters walk test mode (walk test mode).

[0052] 一旦在走动测试模式中,检测器10就可以开始发射110微波信号32以及对反射信号34进行采样112。 [0052] Once in the walk test mode, the detector 10 may begin transmitting 110 a microwave signal 32 and reflected signal 34 is sampled 112. 所述技术人员或测试主体可以通过在距如图1所示的检测器的最大范围处横越受保护区域12来执行对安防区域12的走过。 The technician or test subject can be at the maximum range of the detector shown in FIG. 1 traverses from the protected area 12 to be performed through the security area 12. 如果所述检测器10照亮了指示器光或声56,这指示检测到了该技术人员48,则该设置过程结束。 If the detector 10 illuminates an indicator light or sound 56, which indicates to the technician detected 48, then the setting process ends. 如果所述检测器10没有检测到该技术人员,则该技术人员将范围28设定到更大的值并接着重复该过程。 If the detector 10 does not detect the technician, then the technician will be set to a larger range of values ​​28 and then the process is repeated.

[0053] 在该设置过程期间,所述检测器10内的微处理器31可以使用所选噪声本底,并且每当调整了范围设定电位计时就可以在周围环境状态下(例如,在安防区域12内没有任何人的情况下)继续执行对受保护区域12内噪声本底58的附加测量。 [0053] During this setting process, the microprocessor 10 within the detector 31 may use the selected noise floor, and whenever the adjustment range setting potentiometer can be at ambient environmental conditions (e.g., in the security 12 within the area without any case) continues for additional measurements within the protected area 12 of the noise floor 58. 一旦确定了噪声本底58,在技术人员进行走过时,微处理器31就可以监视输入信号电平64的幅值,以便对所述技术人员进行检测。 Once the magnitude of the noise floor 58, when the technical personnel through, the microprocessor 31 can monitor the input signal level of 64, for detection of the art. 在这种情况下,对检测的监视意味着使用诸如微处理器之类的设备在一时间段内记录高于噪声本底的输入信号电平。 In this case, the detection means for monitoring the use of equipment such as a microprocessor input signal level is higher than the noise floor is recorded in a period of time. 如果检测到所述技术人员,则处理器测量并保存由该技术人员的存在而产生的高于所述噪声本底的输入信号电平的增加。 If the art is detected, then the processor measures and stores the input signal increases above the noise level of the background art by the presence of the person is generated. 把高于所述噪声本底的输入信号电平保存为入侵参考门限电平60,其在随后的操作114中被用作入侵检测的基础。 The input signal level above the noise floor is saved as a reference intrusion threshold level 60, which is used as basis for intrusion detection in a subsequent operation 114. 最终门限电平60可以由参考门限电平和所选标准修正因数二者确定。 The final threshold level 60 may be limited by the reference level and the selected standard door both correction factor determination. 例如,所述最终参考门限电平可以是从测试体反射的多普勒信号乘以安装高度标准修正因数所得的最大值或平均幅值。 For example, the final reference threshold level can be reflected from the Doppler signal is multiplied by the test body mounting height criteria correction factor obtained average or maximum amplitude.

[0054] 作为选择,检测器10的“下视”灵敏性可以被用作第一优先考虑要素以便设定入侵门限电平60。 [0054] Alternatively, the detector "look-down" sensitivity may be used as a first priority element 10 so as to set the threshold level 60 invasion. 在这种情况下,技术人员可以把安防区域的范围电位计28设定为适当的值,并且通过缓慢穿过直接在检测器10之下的受保护区域12来测试所述检测器10的灵敏性。 In this case, the technician can range potentiometer 28 of the secured area is set to an appropriate value, and by slowly passing through the protected area 10 directly below the detector 12 to test the detector 10 is sensitive sex. 如果所述检测器10检测到了技术人员48,则微处理器31保存在本方法下所确定的阈值60,所述过程结束。 If the detector 10 detects the art 48, the microprocessor 31 holds a threshold value 60 determined under this method, the end of the process. 如果所述检测器10没有检测到技术人员,则该技术人员将范围电位计28设定成更长的范围,并且技术人员重复该过程直到微处理器31检测到该技术人员。 If the detector 10 does not detect the art, the skilled person will range potentiometer 28 is set to a longer range and the technician repeats the process until the microprocessor 31 detects the art.

[0055] 一旦设置了,所述检测器10就可以被初始化116,且开始发射118和接收120微波信号。 [0055] Once set, the detector 10 may be initialized 116 and begin transmitting 118 and receiving 120 microwave signals. 所述检测器10可以在检测器10连续对返回信号与预定阈值60进行比较122的过程下检测入侵者。 The detector 10 may detect the returned signal 10 continuously with a predetermined threshold value for detecting an intruder at 60 122 Comparison in the process. 如果返回信号的幅值超过了门限122,则微处理器31可以进行其它测试以确定入侵。 If the amplitude of the return signal exceeds the threshold 122, the microprocessor 31 may perform other tests to determine intrusion. 例如,如果返回信号超过了幅值门限60,则所述检测器10可以确定是否红外检测器(未示出)也已经检测到124入侵者。 For example, if the return signal exceeds the magnitude threshold 60, then the detector 10 may determine whether an infrared detector (not shown) has also detected 124 an intruder. 如果微波传感器和PIR传感器二者都检测到运动,则将生成警报,并且所述检测器10可以将警报46报告给控制面板26。 If both microwave and PIR sensors detect motion sensors, an alarm will be generated, and the detector 10 the alarm 46 may be reported to the control panel 26.

[0056] 如果返回多普勒信号的幅值超出了门限,而PIR传感器没有检测到任何运动,则所述处理器31会进行其它测试以检测入侵。 [0056] If the magnitude of the return Doppler signal exceeds the threshold, while the PIR sensor does not detect any movement, the processor 31 may perform other tests to detect intrusion. 例如,当周围环境温度与人体温接近时,所述处理器31会跟踪多普勒信号电平。 For example, when the ambient temperature is close to human body temperature, the processor 31 will track the Doppler signal level. 如果所述多普勒信号保持增长且超过了预定值62,则所述检测器10会向控制面板26报告警告130/警报46。 If the Doppler signal to maintain growth and 62 exceeds a predetermined value, then the detector 10 will warn 130 / alarm 46 to report to the control panel 26.

[0057] 如果没有报告警告/警报,则所述检测器10会继续步骤132监视所述区域。 [0057] If there is no report warning / alarm, then the step 132 to continue monitoring the detector area 10 will be.

[0058] 为了举例说明进行和使用本发明的方式的目的,已经描述了用于检测入侵者的方法和设备的具体实施例。 [0058] To illustrate the use and purpose for the present embodiment of the invention, specific embodiments have been described for detecting an intruder method and apparatus. 应当理解,本发明的其它变体和修改以及其各个方面的实现方式对于本技术领域技术人员而言是显而易见的,并且本发明并不受限于所描述的具体实施例。 It should be understood that other variations and modifications of the invention and its various aspects of the implementations of the present technology for a skilled in the art will be apparent, and the invention is not limited to the specific embodiments described herein. 因此,预期的是:覆盖落入在这里所公开和声明的基本原理的真实精神和范围内的本发明以及任何和所有修改、变体或者等价物。 Thus, it contemplated that: substantially covers fall within the principles of the herein disclosed and claimed within the true spirit and scope of the present invention and any and all modifications, variations or equivalents.

Claims (16)

  1. 一种用于检测安防区域内的入侵者的微波检测器的操作方法,包括:基于范围设定电位计的设定自动选择所述安防区域内的噪声本底电平;检测从安防区域内的测试主体反射的信号的幅值,所述幅值超过了所选噪声本底;和基于所检测到的信号的所述幅值确立用于检测入侵者的阈值。 A method of operating a microwave intruder detector for detecting the security area, comprising: automatically selecting a noise floor in the area of ​​security level is set based on a range setting potentiometer; detected from the secured area the amplitude of the signal reflected by the test subject, said amplitude exceeds the selected noise floor; establishes a threshold for detecting the intruder and the signal based on the amplitude detected.
  2. 2.如权利要求1所述的微波检测器的操作方法,还包括检测所述检测器在所述安防区域之上的标高。 The method of operating the microwave detector 1 as claimed in claim 2, further comprising a level detector in the detector above the secured area.
  3. 3.如权利要求2所述的微波检测器的操作方法,其中,检测标高的步骤还包括读取开关设定。 2, the method of operating the microwave detector as claimed in claim 3, wherein the step of detecting the elevation further comprises reading a switch setting.
  4. 4.如权利要求2所述的微波检测器的操作方法,还包括基于所检测的标高从查找表中选择检测标准修正因数。 4. A method of operating a microwave detector according to claim 2, further comprising selecting a detection criteria correction factor from a lookup table based on the detected level.
  5. 5.如权利要求1所述的微波检测器的操作方法,其中,选择噪声本底的步骤还包括基于所述范围设定电位计的设定,从IF放大器的输出取回所述噪声本底。 5. The method of operating the microwave detector of claim 1, wherein the step of selecting the noise floor further comprises a setting based on the setting of the potentiometer range, retrieving the noise floor from an output of the IF amplifier .
  6. 6.如权利要求1所述的微波检测器的操作方法,其中,检测所述信号的幅值的步骤还包括进入测试模式。 The method of operating the microwave detector 1 as claimed in claim 6, wherein the step of detecting the amplitude of the signal further comprises entering a test mode.
  7. 7.如权利要求6所述的微波检测器的操作方法,其中,检测所述信号的幅值的步骤还包括把所述安防区域内的所述测试主体定位于距所述检测器最大相对距离处或者直接在所述传感器的下方。 7. A method of operating a microwave detector according to claim 6, wherein the step of detecting the amplitude of said signal further comprises the test subject within the secured area from the detector positioned at a maximum relative distance at or directly below the sensor.
  8. 8. 一种用于检测安防区域内的入侵者的微波检测器,包括:用于基于范围设定电位计的设定选择噪声本底的装置;用于检测从所述安防区域内的测试主体反射的信号的幅值且所述幅值超过所选噪声本底的装置;和,用于基于所检测的信号的幅值和传感器安装高度或者检测标准修正因数确立用于检测入侵者的阈值的装置。 A microwave detector for intruder detection within the security area, comprising: a range setting based on the setting of the potentiometer noise floor selection means; means for detecting a test body from said security area means selected noise floor and the magnitude of the reflected signal exceeds said amplitude; and, for mounting height based on the magnitude of the detected signal and the sensor or the detection criteria correction factor to establish a threshold value for detecting intruders device.
  9. 9.如权利要求8所述的微波检测器,还包括用于检测所述检测器在所述安防区域之上的标高的装置。 Said microwave detector as claimed in claim 8, further comprising means for detecting elevation of the detector above the secured area is used.
  10. 10.如权利要求9所述的微波检测器,其中,用于检测标高的装置还包括用于读取开关设定的装置或者其它装置。 10. The microwave detector according to claim 9, wherein the means for detecting the elevation further comprises means for reading a switch setting or other means.
  11. 11.如权利要求9所述的微波检测器,还包括用于根据检测到的标高从检测标准修正因数查找表集中选择一个的装置。 11. The microwave detector according to claim 9, further comprises means for detecting the level of detection criteria correction factor from the look-up table in a centralized selecting means.
  12. 12.如权利要求8所述的微波检测器,其中,用于选择噪声本底的装置还包括用于基于所述范围设定电位计的所述设定,从IF放大器的输出中取回所述噪声本底的装置。 12. The microwave detector according to claim 8, wherein the means for selecting the noise floor further comprises a potentiometer for setting the set based on the range, retrieving from the output of the IF amplifier the noise floor of said apparatus.
  13. 13.如权利要求8所述的微波检测器,其中,用于检测所述信号的幅值的装置还包括用于进入测试模式的装置。 13. The microwave detector according to claim 8, wherein the means for detecting the amplitude of said signal further comprises means for entering the test mode.
  14. 14.如权利要求13所述的微波检测器,其中,用于检测所述信号的幅值的装置还包括在所述安防区域内被定位于距所述检测器的最大相对距离处或者直接在所述传感器下方的测试主体。 14. The microwave detector according to claim 13, wherein the means for detecting the amplitude of the signal is positioned further comprises a maximum relative distance from the detector in the security area or directly test body below the sensor.
  15. 15. 一种用于检测安防区域内的入侵者的微波检测器,包括:噪声本底,从范围设定电位计的设定确定;比较器,其检测从所述安防区域内的测试主体反射的信号的幅值且所述幅值超过所选噪声本底;和阈值,用于基于所检测到的信号安装高度或检测标准修正因数来检测入侵者。 15. A method for detecting an intruder in the security zone microwave detector, comprising: a noise floor, from a range setting potentiometer settings determined; a comparator which detects from the test subject within the secured area of ​​the reflecting and the amplitude exceeds the selected noise floor amplitude signal; and a threshold value, based on the detected signal mounting height or detection criteria correction factor to detect intruders.
  16. 16.如权利要求15所述的微波检测器,还包括所述检测器在所述安防区域之上的标高,用于确定所述噪声本底。 16. The microwave detector according to claim 15, further comprising elevation of the detector above the secured area for determining the noise floor.
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